Trevor is a dark green traction engine that resides at the Wellsworth Vicarage Orchard. He is owned by the Vicar of Wellsworth and driven by Jem Cole.
The Railway Series
Trevor used to work on farms doing odd jobs like threshing corn and sawing timber, but his owner thought he was old-fashioned and sent him to Crocks Scrap Yard. Edward luckily befriended him and convinced. Rev. Charles Laxey to purchase him. Trevor now lives in the Wellsworth vicarage orchard, but is often borrowed by his driver Jem Cole to do odd jobs and to appear at various events such as steam fairs.
Thomas & Friends
As in the Railway Series, Edward, Jem Cole and the Vicar of Wellsworth saved Trevor from scrap.
Sometime after that, Trevor had little work to do, so Edward took him to Thomas' junction, where Thomas took him to work at Knadford Harbour. At the end of the day, Thomas took Trevor back to the junction and told him that he would visit him if he could, and that the vicar now had more work for him to do in the orchard, but he may be needed at the harbour again somdeday.
Edward and Trevor once helped the vicar organise a garden party to raise money for a seaside trip for underprivileged children. On the day of the party, overnight rain had made the orchard ground too wet, so Trevor gave children rides along the nearby country lane instead. He later helped Terence rescue Bertie, who had gotten stuck in the mud at the orchard gate.
Trevor once stalled on a level crossing with a damaged haycart, only to have Donald and Douglas demolish it altogether. A similar accident happened on May Day with Trevor was pulling a cartload of apples across the track, and a blinded Gordon crashed into it before it could clear the crossing, smashing the apples in the process.
Later on, Trevor has been seen working in other places such as Farmer McColl's Field and the Sodor Airport.
According to a magazine article, he sometimes works on Farmer Trotter's Pig Farm.
He was an attraction at the Sodor Steam Fair and was later seen at a fair at Maithwaite.
In the twentieth series, when one of Farmer McColl's cows got stuck under the bridge at the Watermill, Trevor helped lift it out.
In the twenty-second series, he received a new whistle and showed it off to Thomas and Merlin.
In the twenty-fourth series, he tells Victor and Kevin who meets Kenji.
Trevor is incredibly cheerful, kind and benevolent, and gets along well with nearly everyone. He enjoys basking in the sunshine or dozing in his shed, but easily grows bored and unhappy if he does not have much company or enough work to do. Trevor is particularly fond of children, and loves giving them rides whenever he gets the chance.
Trevor is based on a William Foster & Co. eight-ton traction engine built in 1927 named Fiery Elias that was owned by the Rev. W. Awdry's friend, the Rev. Teddy Boston. He also owned the steam roller that became George and Buster's basis. Boston's widow, Audrey, still owns Fiery Elias.
Unlike his basis, however, Trevor is depicted with a belly-tank under his boiler.
In Edward the Blue Engine, Trevor was painted black all over with gold boiler bands and a gold chimney cap. In Thomas and the Twins and Thomas and the Missing Christmas Tree, he was painted green with gold boiler bands and a gold chimney cap. His chimney and smokebox are also painted green.
Throughout the television series, Trevor is always painted dark green with red lining and wheels, a black smokebox and gold boiler bands.
The Railway Series
- Edward the Blue Engine - Saved from Scrap
- Toby, Trucks and Trouble - Toby Takes the Road (mentioned)
- Thomas and the Twins - Trevor Helps Out and Down the Drain (mentioned)
- 1986 - Thomas and the Missing Christmas Tree (cameo)
- 1987 - The Island of Sodor: Its People, History and Railways (mentioned)
- 2005 - Sodor: Reading Between the Lines (mentioned)
Thomas & Friends
- Series 2 - Saved from Scrap, Thomas and Trevor, Better Late Then Never (cameo) and Thomas and the Missing Christmas Tree (cameo)
- Series 3 - Gordon and the Famous Visitor (cameo), Donald's Duck (cameo), Henry's Forest (does not speak), Edward, Trevor and the Really Useful Party, Buzz, Buzz and Escape (does not speak)
- Series 4 - Special Attention (cameo)
- Series 5 - Toby and the Flood (cameo) and Toby's Discovery (cameo)
- Series 6 - Elizabeth the Vintage Lorry (cameo) and Twin Trouble
- Series 7 - Edward's Brass Band (cameo), Toby's Windmill (cameo), Bulgy Rides Again (does not speak), Harold and the Flying Horse (cameo), Best Dressed Engine (does not speak) and Three Cheers for Thomas (cameo)
- Jack and the Sodor Construction Company - Mud, Glorious Mud (cameo)
- Series 8 - Thomas and the Tuba (does not speak), Percy's New Whistle (does not speak), Henry and the Wishing Tree (deleted scene cameo), Emily's New Route (cameo), Emily's Adventure (does not speak) and Too Hot for Thomas (cameo)
- Series 9 - Thomas and the Rainbow (cameo) and Henry and the Flagpole
- Series 10 - Follow that Flour (cameo)
- Series 12 - Rosie's Funfair Special (cameo) and Excellent Emily (does not speak)
- Series 15 - Emily and Dash (cameo)
- Series 19 - Very Important Sheep (cameo)
- Series 20 - Three Steam Engines Gruff
- Series 21 - Springtime for Diesel (cameo) and The Fastest Red Engine on Sodor (deleted scene)
- Series 22 - School of Duck (cameo) and Seeing is Believing
- Series 24 - Kenji on the Rails Again and Cleo the Road Engine (does not speak)
Trevor was set to appear in the cancelled episode, Isobella Gets Steamed. Trevor's first appearance in the CGI Series was in the "Island of Sodor" opening sequence.
- 1992 - Thomas and the U.K. Trip (cameo)
- 2008 - The Great Discovery (does not speak)
- 2017 - Journey Beyond Sodor
- Series 8 - Being Blue (does not speak)
- Series 9 - Emily Respects (cameo), Which Load for Which Route? (cameo), Who Respects Whom? cameo) and Arthur's Tricky Travels (does not speak)
- Series 3 - Thomas' Anthem and I'm Thomas the Tank Engine
- Series 4 - Thomas' Anthem Grand Finale, Let's Have a Race, Don't Judge a Book By its Cover and Thomas' Christmas Song
- Series 5 - Harold the Helicopter and Percy's Seaside Trip
- Series 6 - Winter Wonderland cameo and Never, Never, Never Give Up
- Series 7 - The Whistle Song
- Series 8 - Surprises and A World Around You
- Series 9 - Party Time and Pride
- Jack and the Sodor Construction Company - One Friendly Family
- Series 10 - Navigation, Rudolph the Red-Nosed Reindeer and Jingle Bells
- The Great Discovery - Where, oh Where is Thomas? (name mentioned on newspaper) and Thomas, You're the Leader
- Series 15 - Hear the Engines Coming
- Thomas' YouTube World Tour - Never, Never, Never Give Up
- Series 19 - Spring is Here!
- Journey Beyond Sodor - The Most Important Thing is Being Friends
- Series 21 - Set Friendship in Motion
- 1988 - Thomas and Trevor
- 1989 - Trevor's Nest and Clearing Up (does not speak)
- 1990 - Henry's Forest (does not speak)
- 1993 - Trevor to the Rescue!
- 1994 - Thomas and Trevor
- 1997 - Trevor and Trevor's Christmas Surprise
- 1998 - Look Alike (does not speak) and Copycat! (does not speak)
- 2000 - Terence and Trevor!
- 2001 - False Alarm and Pumpkin Pie! (does not speak)
- 2002 - James and the Bees
- 2003 - Trevor and Thomas
- 2004 - Henry's Forest, Bertie and the Race (does not speak) and Double Trouble!
- 2005 - Emily's New Route (cameo) and Emily's Adventure
- 2006 - Steamed Up, Percy's New Whistle (does not speak) and Whizzing Wheels
- 2007 - Autumn Leaves (does not speak)
- 2008 - Tripped Up!
- 2010 - Tripped Up!
- 2011 - Terence and Trevor!, Saved Again and Out of Control
- 2014 - William's Wish
Trevor also appeared in the magazine stories, Double Attraction, Fun With Friends, Harvest, Harvest Time, Road and Rails, Slow Down, Bertie! and The Flyover!,
- 1987 - Timber!
- 1988 - Thomas and Trevor
- 1989 - Trapped by Trees (not seen)
- 1991 - Trucks for Scrap (mentioned) and In the Drink
- 1994 - The Merry-Go-Round That Wouldn't
- 1995 - First Prize
- Nigel Pilkington (UK; twentieth series onwards)
- Christopher Ragland (US; twentieth series onwards)
- Simon Hepworth (UK; Railway Adventures only)
- Toshio Kobayashi (Japan; second - sixth season)
- Mitsuhiro Sakamaki (Japan; ninth series onwards)
- Robert Knorr (Germany; twentieth series onwards)
- Thomas Johannsen (Germany; Audio Books only)
- Esteban Desco (Latin America; twentieth series only)
- TBA (Latin America; Journey Beyond Sodor onwards)
- Trevor's model is currently on display at Drayton Manor.
- A large scale model of Trevor was built of the Pack. It is now owned by ThomasTankMerch on Twitter.
- The CGI render of Trevor was made for the thirteenth series (as seen in the US introduction segment), however he did not appear in the series until the fifteenth series.
- His voice actors also voice Percy in their respective dubs.
- He speaks with a West Country accent in the UK dub and speaks with a Southern accent in the US dub.
- Trevor went through several aesthetic changes in the television series:
- Series 3:
- His eyes became moveable and radio-controlled like the engines', rather than being moulded as part of the face as in the previous series.
- The bronze circle in front of his cylinder was painted silver.
- Series 4:
- His eyes stopped moving.
- Season 6:
- The silver circle on his cylinder was painted black.
- Part of his smokebox changed from green to black.
- Series 8:
- His eyes became movable again (only in close-ups which feature his large scale model).
- Series 15:
- The front of his water tank became black.
- The bottom part that connects his smokebox to his wheels became fully black.
- The lining on his front axle changed in style.
- Series 20:
- The front of his water tank reverts to its previous livery.
- His whistle sound was updated.
- Series 22:
- In Seeing is Believing, his whistle sound was updated again.
- Series 3:
"I'm Trevor, they're going to break me up next week".
"Want a shame!" said Edward.
"My driver says I only need some paint, Brasso and oil to be as good as new", Trevor went on sadly. "But it's no good. My master doesn't want me. I suppose its because I'm old fashioned".
Edward snorted indignantly. "People say I'm old fashioned. But I don't care. The Fat Controller says I'm a really useful engine".
"My driver says I'm useful too", replied Trevor. "I sometimes feel ill, but I don't give up like these tractors. I struggle on and finish the job. I've never broken down in my life!" he ended proudly."
---Trevor introduces himself to Edward, Saved From Scrap, Edward the Blue Engine
"You're very nice, Trevor", puffed Henry. "But you wouldn't make a very good flagpole!"
---Trevor saying hello to Henry, Henry and the Flagpole, ninth series
- ERTL (normal, scrap Trevor with flatbed and miniature; all discontinued)
- Wooden Railway (discontinued, 2017 reintroduction)
- Take Along (discontinued)
- Collectible Railway (cancelled)
- Motor Road and Rail (discontinued)
- Thomas Engine Collection Series (discontinued)
- Mini De Cast Collection (discontinued)
- Trading Cards (discontinued)
- Royal Hampshire (discontinued)
- My First Thomas (normal model (discontinued) and talking model (cancelled))
- My Thomas Story Library (discontinued)
- Nakayoshi (discontinued)
- Capsule Plarail
- Adventures (discontinued)